AMD Courts Gamers for 64-Bit Chip

Many technology vendors are concerned about corporate demand. Right now, Advanced Micro Devices Inc. needs to please the likes of Noah Kretz.

Mr. Kretz is a 22-year-old student at Iowa State University in Ames who plays online games and builds his own personal computers. He and 63 fellow enthusiasts are being flown at AMD's expense to an event in San Francisco Tuesday for the unveiling of the Athlon 64, an unusual chip that...